Xiaomi Redmi 15 vs OnePlus Nord N30 SE: A Deep Dive into Budget Smartphone Performance
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🏆 Quick Verdict
For the average user prioritizing sustained performance and longevity, the Xiaomi Redmi 15 emerges as the winner. Its Snapdragon 6s Gen 3, built on a more efficient 6nm process, offers a slight edge in CPU performance and, crucially, boasts a tested 67:03h battery endurance with a 1000-cycle lifespan, exceeding the Nord N30 SE’s unknown endurance.
| PHONES | ||
|---|---|---|
| Phone Names | Xiaomi Redmi 15 | OnePlus Nord N30 SE |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 32, 38, 40, 41, 42, 48, 66, 71 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 26, 28, 38, 39, 40, 41, 66 |
| 5G bands | 1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 71 SA/NSA | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA |
| Speed | HSPA, LTE, 5G | HSPA, LTE, 5G |
| Technology | GSM / HSPA / LTE / 5G | GSM / HSPA / LTE / 5G |
| Launch | ||
|---|---|---|
| Announced | 2025, August 01 | 2024, January 29 |
| Status | Available. Released 2025, August 01 | Available. Released 2024, January 31 |
| Body | ||
|---|---|---|
| Build | Glass front (Gorilla Glass 3), plastic frame, plastic back | Glass front, plastic frame, plastic back |
| Dimensions | 169.5 x 80.5 x 8.4 mm (6.67 x 3.17 x 0.33 in) | 165.6 x 76 x 8 mm (6.52 x 2.99 x 0.31 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 217 g (7.65 oz) | 193 g (6.81 oz) |
| Display | ||
|---|---|---|
| Protection | Corning Gorilla Glass 3, Mohs level 6 | - |
| Resolution | 1080 x 2340 pixels, 19.5:9 ratio (~374 ppi density) | 1080 x 2400 pixels, 20:9 ratio (~392 ppi density) |
| Size | 6.9 inches, 116.9 cm2 (~85.7% screen-to-body ratio) | 6.72 inches, 109.0 cm2 (~86.6% screen-to-body ratio) |
| Type | IPS LCD, 144Hz, 600 nits (typ), 700 nits (HBM), 850 nits (peak) | IPS LCD |
| Platform | ||
|---|---|---|
| CPU | Octa-core (2x2.3 GHz Cortex-A78 & 6x2.0 GHz Cortex-A55) | Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) |
| Chipset | Qualcomm SM6375 Snapdragon 6s Gen 3 (6 nm) | Mediatek Dimensity 6020 (7 nm) |
| GPU | Adreno 619 | Mali-G57 MC2 |
| OS | Android 15, HyperOS 2.2 | Android 13, OxygenOS 13.1 |
| Memory | ||
|---|---|---|
| Card slot | microSDXC (uses shared SIM slot) | No |
| Internal | 128GB 4GB RAM, 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM | 128GB 4GB RAM |
| Main Camera | ||
|---|---|---|
| Dual | 50 MP, f/1.8, (wide), 1/2.88" 0.61μm, PDAF Auxiliary lens | 50 MP, f/1.8, (wide), 1/2.76", 0.64µm, PDAF Auxiliary lens |
| Features | LED flash, HDR | LED flash, HDR, panorama |
| Video | 1080p@30fps | 1080p@30fps |
| Selfie camera | ||
|---|---|---|
| Features | HDR | - |
| Single | 8 MP, f/2.0, (wide) | 8 MP, f/2.0, (wide), 1/4.0", 1.12µm |
| Video | 1080p@30fps | 1080p@30fps |
| Sound | ||
|---|---|---|
| 35mm jack | No | Yes |
| Loudspeaker | Yes | Yes, with stereo speakers |
| Comms | ||
|---|---|---|
| Bluetooth | 5.1, A2DP, LE, aptX | 5.3, A2DP, LE |
| Infrared port | Yes | - |
| NFC | Yes (market/region dependent) | Yes |
| Positioning | GPS, GLONASS, GALILEO, BDS | GPS, GALILEO, GLONASS, BDS |
| Radio | No | No |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | 33W wired, PD 2.0, PPS, QC3 18W reverse wired | 33W wired, 51% in 30 min |
| Type | 7000 mAh | 5000 mAh |
| Misc | ||
|---|---|---|
| Colors | Midnight Black, Titan Gray, Ripple Green | Black Satin, Cyan |
| Models | 25057RN09E | CPH2605 |
| Price | € 159.00 / $ 219.99 / £ 179.00 | About 510 EUR |
| SAR EU | 1.00 W/kg (head) 1.00 W/kg (body) | - |
| EU LABEL | ||
|---|---|---|
| Battery | 67:03h endurance, 1000 cycles | - |
| Energy | Class B | - |
| Free fall | Class D (45 falls) | - |
| Repairability | Class C | - |
Xiaomi Redmi 15
- Superior battery endurance (67:03h)
- Longer battery lifespan (1000 cycles)
- More efficient chipset (Snapdragon 6s Gen 3, 6nm)
- Charging speed is comparable to the Nord N30 SE, but doesn't offer the same initial burst.
- Camera specifications are unknown, potentially lagging behind OnePlus.
OnePlus Nord N30 SE
- Faster initial charging speed (51% in 30 minutes)
- Potentially better image processing (based on brand reputation)
- OnePlus’s OxygenOS software experience
- Battery endurance is unknown, likely lower than the Redmi 15.
- Chipset is built on a less efficient 7nm process.
Display Comparison
Display specifications are absent from the provided data, making a direct comparison impossible. However, given the price bracket, both devices likely feature LCD panels with FHD+ resolution. The absence of LTPO or high refresh rate technology is expected. The user experience will likely hinge on color calibration and peak brightness, areas where OnePlus historically performs well, but without data, this remains speculative.
Camera Comparison
Camera details are limited. Without sensor size, aperture, or OIS information, a meaningful comparison is difficult. It’s safe to assume both phones feature a multi-camera setup with a primary sensor and supporting lenses. The prevalence of 2MP macro lenses in this segment suggests both devices likely include one, but their utility is questionable. Image processing algorithms will be key differentiators, and brand reputation suggests OnePlus may offer more refined image processing, but this is unconfirmed.
Performance
The core of the difference lies in the chipsets. The Xiaomi Redmi 15’s Qualcomm Snapdragon 6s Gen 3 (6nm) features an octa-core configuration with 2x2.3 GHz Cortex-A78 cores and 6x2.0 GHz Cortex-A55 cores. The OnePlus Nord N30 SE utilizes the MediaTek Dimensity 6020 (7nm) with 2x2.2 GHz Cortex-A76 cores and 6x2.0 GHz Cortex-A55 cores. While both employ similar core counts, the Snapdragon 6s Gen 3’s newer architecture and 6nm fabrication process should translate to slightly better efficiency and sustained performance. The 7nm Dimensity 6020 is still capable, but the Redmi 15 has a slight architectural advantage. The lack of LPDDR5x RAM specification for either device suggests they likely utilize LPDDR4x, which is standard for this price point.
Battery Life
The Xiaomi Redmi 15 shines in battery endurance, boasting a remarkable 67:03h of usage and a 1000-cycle lifespan. This indicates exceptional longevity and reliability. The Nord N30 SE’s battery capacity is unknown, but its 33W charging, capable of reaching 51% in 30 minutes, is a clear advantage for users who prioritize quick top-ups. The Redmi 15 also supports 33W wired charging with PD 2.0, PPS, and QC3 standards, and even 18W reverse wired charging, offering greater versatility.
Buying Guide
Buy the Xiaomi Redmi 15 if you need a phone that will reliably last through a full day of heavy use and potentially for years to come, thanks to its impressive battery cycle rating. It’s ideal for users who stream videos, play casual games, and demand consistent performance. Buy the OnePlus Nord N30 SE if you prioritize quick charging – reaching 51% in 30 minutes – and prefer the OnePlus software experience, potentially valuing its streamlined interface over raw performance metrics.